Add NVTBLFrm to represent A8.6.406 VTBL, VTBX Vector Table Lookup Instructions.

These instructions use byte index in a control vector (M:Vm) to lookup byte
values in a table and generate a new vector (D:Vd).  The table is specified via
a list of vectors, which can be:

{Dn}
{Dn D<n+1>}
{Dn D<n+1> D<n+2>}
{Dn D<n+1> D<n+2> D<n+3>}

llvm-svn: 99789

2 files changed, 9 insertions, 8 deletions

diff --git a/llvm/lib/Target/ARM/ARMInstrFormats.td b/llvm/lib/Target/ARM/ARMInstrFormats.td
index b398b1f785f..4427e50bbdb 100644
--- a/llvm/lib/Target/ARM/ARMInstrFormats.td
+++ b/llvm/lib/Target/ARM/ARMInstrFormats.td
@@ -70,6 +70,7 @@ def N3RegFrm       : Format<38>;
 def N3RegVShFrm    : Format<39>;
 def NVExtFrm       : Format<40>;
 def NVMulSLFrm     : Format<41>;
+def NVTBLFrm       : Format<42>;
 
 // Misc flags.
 
diff --git a/llvm/lib/Target/ARM/ARMInstrNEON.td b/llvm/lib/Target/ARM/ARMInstrNEON.td
index be7b7488048..ed9d31d80f3 100644
--- a/llvm/lib/Target/ARM/ARMInstrNEON.td
+++ b/llvm/lib/Target/ARM/ARMInstrNEON.td
@@ -3293,26 +3293,26 @@ def  VZIPq32  : N2VQShuffle<0b10, 0b00011, IIC_VPERMQ3, "vzip", "32">;
 //   VTBL     : Vector Table Lookup
 def  VTBL1
   : N3V<1,1,0b11,0b1000,0,0, (outs DPR:$dst),
-        (ins DPR:$tbl1, DPR:$src), N3RegFrm, IIC_VTB1,
+        (ins DPR:$tbl1, DPR:$src), NVTBLFrm, IIC_VTB1,
         "vtbl", "8", "$dst, \\{$tbl1\\}, $src", "",
         [(set DPR:$dst, (v8i8 (int_arm_neon_vtbl1 DPR:$tbl1, DPR:$src)))]>;
 let hasExtraSrcRegAllocReq = 1 in {
 def  VTBL2
   : N3V<1,1,0b11,0b1001,0,0, (outs DPR:$dst),
-        (ins DPR:$tbl1, DPR:$tbl2, DPR:$src), N3RegFrm, IIC_VTB2,
+        (ins DPR:$tbl1, DPR:$tbl2, DPR:$src), NVTBLFrm, IIC_VTB2,
         "vtbl", "8", "$dst, \\{$tbl1, $tbl2\\}, $src", "",
         [(set DPR:$dst, (v8i8 (int_arm_neon_vtbl2
                                DPR:$tbl1, DPR:$tbl2, DPR:$src)))]>;
 def  VTBL3
   : N3V<1,1,0b11,0b1010,0,0, (outs DPR:$dst),
-        (ins DPR:$tbl1, DPR:$tbl2, DPR:$tbl3, DPR:$src), N3RegFrm, IIC_VTB3,
+        (ins DPR:$tbl1, DPR:$tbl2, DPR:$tbl3, DPR:$src), NVTBLFrm, IIC_VTB3,
         "vtbl", "8", "$dst, \\{$tbl1, $tbl2, $tbl3\\}, $src", "",
         [(set DPR:$dst, (v8i8 (int_arm_neon_vtbl3
                                DPR:$tbl1, DPR:$tbl2, DPR:$tbl3, DPR:$src)))]>;
 def  VTBL4
   : N3V<1,1,0b11,0b1011,0,0, (outs DPR:$dst),
         (ins DPR:$tbl1, DPR:$tbl2, DPR:$tbl3, DPR:$tbl4, DPR:$src),
-        N3RegFrm, IIC_VTB4,
+        NVTBLFrm, IIC_VTB4,
         "vtbl", "8", "$dst, \\{$tbl1, $tbl2, $tbl3, $tbl4\\}, $src", "",
         [(set DPR:$dst, (v8i8 (int_arm_neon_vtbl4 DPR:$tbl1, DPR:$tbl2,
                                DPR:$tbl3, DPR:$tbl4, DPR:$src)))]>;
@@ -3321,27 +3321,27 @@ def  VTBL4
 //   VTBX     : Vector Table Extension
 def  VTBX1
   : N3V<1,1,0b11,0b1000,1,0, (outs DPR:$dst),
-        (ins DPR:$orig, DPR:$tbl1, DPR:$src), N3RegFrm, IIC_VTBX1,
+        (ins DPR:$orig, DPR:$tbl1, DPR:$src), NVTBLFrm, IIC_VTBX1,
         "vtbx", "8", "$dst, \\{$tbl1\\}, $src", "$orig = $dst",
         [(set DPR:$dst, (v8i8 (int_arm_neon_vtbx1
                                DPR:$orig, DPR:$tbl1, DPR:$src)))]>;
 let hasExtraSrcRegAllocReq = 1 in {
 def  VTBX2
   : N3V<1,1,0b11,0b1001,1,0, (outs DPR:$dst),
-        (ins DPR:$orig, DPR:$tbl1, DPR:$tbl2, DPR:$src), N3RegFrm, IIC_VTBX2,
+        (ins DPR:$orig, DPR:$tbl1, DPR:$tbl2, DPR:$src), NVTBLFrm, IIC_VTBX2,
         "vtbx", "8", "$dst, \\{$tbl1, $tbl2\\}, $src", "$orig = $dst",
         [(set DPR:$dst, (v8i8 (int_arm_neon_vtbx2
                                DPR:$orig, DPR:$tbl1, DPR:$tbl2, DPR:$src)))]>;
 def  VTBX3
   : N3V<1,1,0b11,0b1010,1,0, (outs DPR:$dst),
         (ins DPR:$orig, DPR:$tbl1, DPR:$tbl2, DPR:$tbl3, DPR:$src),
-        N3RegFrm, IIC_VTBX3,
+        NVTBLFrm, IIC_VTBX3,
         "vtbx", "8", "$dst, \\{$tbl1, $tbl2, $tbl3\\}, $src", "$orig = $dst",
         [(set DPR:$dst, (v8i8 (int_arm_neon_vtbx3 DPR:$orig, DPR:$tbl1,
                                DPR:$tbl2, DPR:$tbl3, DPR:$src)))]>;
 def  VTBX4
   : N3V<1,1,0b11,0b1011,1,0, (outs DPR:$dst), (ins DPR:$orig, DPR:$tbl1,
-        DPR:$tbl2, DPR:$tbl3, DPR:$tbl4, DPR:$src), N3RegFrm, IIC_VTBX4,
+        DPR:$tbl2, DPR:$tbl3, DPR:$tbl4, DPR:$src), NVTBLFrm, IIC_VTBX4,
         "vtbx", "8", "$dst, \\{$tbl1, $tbl2, $tbl3, $tbl4\\}, $src",
         "$orig = $dst",
         [(set DPR:$dst, (v8i8 (int_arm_neon_vtbx4 DPR:$orig, DPR:$tbl1,